Question:
Match List-I with List-II
List-I List-II (A) Sodium thiosulphate (I) Non ionic iodinated contrast agent (B) Iohexol (II) Intensifying screen (C) Hydroquinone (III) Fixing agent (D) Calcium tungstate (IV) Reducing agent
Match List-I with List-II
| List-I | List-II |
|---|---|
| (A) Sodium thiosulphate | (I) Non ionic iodinated contrast agent |
| (B) Iohexol | (II) Intensifying screen |
| (C) Hydroquinone | (III) Fixing agent |
| (D) Calcium tungstate | (IV) Reducing agent |
Show Hint
- Developer = Reducing agents (Hydroquinone, Phenidone).
- Fixer = Fixing/clearing agents (Sodium/Ammonium thiosulphate).
- Contrast agents: Ionic (Diatrizoate), Non-ionic (Iohexol, Iopamidol).
- Fixer = Fixing/clearing agents (Sodium/Ammonium thiosulphate).
- Contrast agents: Ionic (Diatrizoate), Non-ionic (Iohexol, Iopamidol).
Updated On: Jul 23, 2026
- (A) - (III), (B) - (I), (C) - (II), (D) - (IV)
- (A) - (II), (B) - (I), (C) - (IV), (D) - (III)
- (A) - (III), (B) - (I), (C) - (IV), (D) - (II)
- (A) - (IV), (B) - (I), (C) - (III), (D) - (II)
Show Solution
Verified By Collegedunia
The Correct Option is C
Solution and Explanation
Step 1: Understanding the Concept:
Diagnostic radiography utilizes specialized chemical agents for processing radiographic films, contrast media for highlighting internal structures, and phosphors for converting X-rays into visible light.
Step 2: Detailed Explanation:
Let us match the items in List-I with their corresponding definitions in List-II:
- (A) Sodium thiosulphate:
Sodium thiosulphate (commonly known as hypo) is the primary active ingredient in the fixer solution used during manual or automatic film processing.
Its role as a fixing agent is to dissolve and clear unexposed, undeveloped silver halide crystals from the film emulsion, stabilizing the image.
Thus, (A) matches with (III).
- (B) Iohexol:
Iohexol is a water-soluble, low-osmolar, non-ionic iodinated contrast agent widely used in veterinary medicine for myelography, excretory urography, and angiographic studies due to its safety and low neurotoxicity.
Thus, (B) matches with (I).
- (C) Hydroquinone:
Hydroquinone is a key chemical component in the developer solution.
It acts as a reducing agent (developer) that selectively reduces exposed silver halide crystals to black metallic silver, forming the visible radiographic image.
Thus, (C) matches with (IV).
- (D) Calcium tungstate:
Calcium tungstate was the classical phosphor material used in the construction of intensifying screens in radiographic cassettes.
It converts absorbed X-ray photons into visible blue light, which exposes the radiographic film, reducing the radiation dose required.
Thus, (D) matches with (II).
Combining these matches, we get: (A)-(III), (B)-(I), (C)-(IV), (D)-(II).
Step 3: Final Answer:
The correct option is (C).
Diagnostic radiography utilizes specialized chemical agents for processing radiographic films, contrast media for highlighting internal structures, and phosphors for converting X-rays into visible light.
Step 2: Detailed Explanation:
Let us match the items in List-I with their corresponding definitions in List-II:
- (A) Sodium thiosulphate:
Sodium thiosulphate (commonly known as hypo) is the primary active ingredient in the fixer solution used during manual or automatic film processing.
Its role as a fixing agent is to dissolve and clear unexposed, undeveloped silver halide crystals from the film emulsion, stabilizing the image.
Thus, (A) matches with (III).
- (B) Iohexol:
Iohexol is a water-soluble, low-osmolar, non-ionic iodinated contrast agent widely used in veterinary medicine for myelography, excretory urography, and angiographic studies due to its safety and low neurotoxicity.
Thus, (B) matches with (I).
- (C) Hydroquinone:
Hydroquinone is a key chemical component in the developer solution.
It acts as a reducing agent (developer) that selectively reduces exposed silver halide crystals to black metallic silver, forming the visible radiographic image.
Thus, (C) matches with (IV).
- (D) Calcium tungstate:
Calcium tungstate was the classical phosphor material used in the construction of intensifying screens in radiographic cassettes.
It converts absorbed X-ray photons into visible blue light, which exposes the radiographic film, reducing the radiation dose required.
Thus, (D) matches with (II).
Combining these matches, we get: (A)-(III), (B)-(I), (C)-(IV), (D)-(II).
Step 3: Final Answer:
The correct option is (C).
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